DEWALT's 4 in. x .045 in. x 5/8-In.-11 HP T1 Aluminum-Oxide Metal Cut-Off Wheel uses two layers of fiberglass reinforcement to increase wheel strength and help reduce breakage during demanding metal-cutting work. Its resin-bonded aluminum-oxide construction provides consistent abrasive performance, while the thin design helps produce clean cuts with less material removal. The wheel is suitable for fabrication, maintenance, installation, and general metalworking applications where controlled cutting of metal is required.